It will be much more dangerous when someone plans to pursue much bigger profits in trading using minimal knowledge and usually such traders do not use risk management in trading. Having a small amount of capital and then thinking that you can double it quickly in trading is a wrong practice because even people who have a lot of capital will make adjustments to the profits they want to achieve in trading.
There are many people who experience losses in trading caused by greed and it almost mostly happens to small traders. If you are unable to control your emotions and do not have management to minimize risk, then trading is not the best way for them to make money.
Trading is risky and loss is for everyone, every trader either big or small trader. If they can not manage their capital, trading positions well, they will have losses in the market. Big capital, big loss while small capital small loss.
To manage capital and risk, they can use Stop loss order, that is called as
one of best weapons in trading. If a trader does not use any weapon, tool to defend trading capital, it's a bad trader.
Greedy or not, if you don't use stop loss order, your trading capital can vanish quicky in a bad day.